Understanding Indoor Air Quality

Pollutant Problems

All homes, no matter how clean they appear, are contaminated with dirt and dust. Older homes can be breeding grounds for mold and mildew. New, tightly sealed homes trap pollutants and can have higher concentrations of chemicals

Types & Sources of Pollutants

TypeParticles

DefinitionPollutants found in the air

Pollutants • Pollen • Dust mites • Dirt • Pet and human dander

Sources• Plants, people and animals

Microorganisims/Bioaerosols

Microscopic pollutants that grow and reproduce in warm, humid environments